[REBOL] Re: Is there a REBOL construct similar to the "map" word as used in Logo
From: gerardcote:sympatico:ca at: 29-Jun-2002 0:10
Hello Gregg,
You just sent me this "map" definition from Larry :
> ; Larry Palmiter
> map: func [fn blk args /local result][
> result: copy []
> repeat el blk [append/only result fn :el args]
> return result
> ]
Thanks for this alternative "map" implementation that looks promising too. It seems that
I am not the first REBOL newbie that sees
an interest in this construct ...
While looking at how this version was implemented, one question hurts my head that you
may be able to answer while I am searching
myself for more information about it. Where does the "el" word used in the repeat construct
come from ? I don't see it anywhere
being assigned a value or passed as a parameter before it is used and I find this a little
strange.
Is it a constant already known by REBOL, is there something missing, some part I don't
understand or what else ?
Regards,
Gerard
